This two way Digital Coax to Toslink Audio Converter Repeater lets you extend & convert digital coax audio to Toslink audio, or Toslink to digital coax. This easy to use solution means that you can select the input signal you want to convert or extend, & outputs both digital coaxial & Toslink audio signals. This digital coax to Toslink audio converter/repeater does not downgrade the audio signal, & provides an output signal that matches the quality of input audio, supporting 2 to 5.1 channel audio.